This paper presented the virtual telephony network, P_VPN. The architecture of P_VPN includes management layer, transmission layer and control plane.

文章提出了电话虚拟专网P_ VPN安全模型，其体系包括管理层、传输层和控制面。

youdao

This paper presented the virtual telephony network, P_VPN. The architecture of P_VPN includes management layer, transmission layer and control plane.

文章提出了电话虚拟专网P_ VPN安全模型，其体系包括管理层、传输层和控制面。

youdao